Dimension-Rails is a pure Ruby lbrary for reading the width, height and rotation angle of a Gif, PNG, JPEG, or TIFF. It overrides your image_tag view helper to automatically add width and height attributes to all of your images.

Pat Shaughnessy has released the first chapter from his upcoming book “Ruby Under a Microscope”, which aims to teach people how Ruby works internally. The book not only covers concepts, but also includes some code examples in Ruby. The title for the first chapter is ‘How Hashes Scale From One To One Million Elements’.

OpenStruct is a hashlike datastructure that allows you to arbitrarily define attributes and values and access them like you would any other object. This new OpenStruct class addresses issues the original has with conflicting member names and cloning.

The Active Record Reputation System gem can help you discover more about your application and make better decisions. This gem aims to make it easy to integrate reputation systems into Rails applications.

The FigLeaf gem allows us to selective protect methods in our Rails models which are inherited from other classes and modules. It was initially presented as a simple Ruby module on Avdi Grimm’s Objects on Rails book, and it’s now its own gem

Previous Episodes

We look at easier schema-less hstore on Postgres, Ruby versions in your Gemfile, and Skype in your app. We learn how to DRY better, build a Gem from scratch, build a book without scratching yourself and how to binge on Code School for free.